diff options
Diffstat (limited to 'ini.c')
-rw-r--r-- | ini.c | 304 |
1 files changed, 0 insertions, 304 deletions
diff --git a/ini.c b/ini.c deleted file mode 100644 index 509952dc92f0..000000000000 --- a/ini.c +++ /dev/null @@ -1,304 +0,0 @@ -/* inih -- simple .INI file parser - -SPDX-License-Identifier: BSD-3-Clause - -Copyright (C) 2009-2020, Ben Hoyt - -inih is released under the New BSD license (see LICENSE.txt). Go to the project -home page for more info: - -https://github.com/benhoyt/inih - -*/ - -#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS) -#define _CRT_SECURE_NO_WARNINGS -#endif - -#include <stdio.h> -#include <ctype.h> -#include <string.h> - -#include "ini.h" - -#if !INI_USE_STACK -#if INI_CUSTOM_ALLOCATOR -#include <stddef.h> -void* ini_malloc(size_t size); -void ini_free(void* ptr); -void* ini_realloc(void* ptr, size_t size); -#else -#include <stdlib.h> -#define ini_malloc malloc -#define ini_free free -#define ini_realloc realloc -#endif -#endif - -#define MAX_SECTION 50 -#define MAX_NAME 50 - -/* Used by ini_parse_string() to keep track of string parsing state. */ -typedef struct { - const char* ptr; - size_t num_left; -} ini_parse_string_ctx; - -/* Strip whitespace chars off end of given string, in place. Return s. */ -static char* rstrip(char* s) -{ - char* p = s + strlen(s); - while (p > s && isspace((unsigned char)(*--p))) - *p = '\0'; - return s; -} - -/* Return pointer to first non-whitespace char in given string. */ -static char* lskip(const char* s) -{ - while (*s && isspace((unsigned char)(*s))) - s++; - return (char*)s; -} - -/* Return pointer to first char (of chars) or inline comment in given string, - or pointer to NUL at end of string if neither found. Inline comment must - be prefixed by a whitespace character to register as a comment. */ -static char* find_chars_or_comment(const char* s, const char* chars) -{ -#if INI_ALLOW_INLINE_COMMENTS - int was_space = 0; - while (*s && (!chars || !strchr(chars, *s)) && - !(was_space && strchr(INI_INLINE_COMMENT_PREFIXES, *s))) { - was_space = isspace((unsigned char)(*s)); - s++; - } -#else - while (*s && (!chars || !strchr(chars, *s))) { - s++; - } -#endif - return (char*)s; -} - -/* Similar to strncpy, but ensures dest (size bytes) is - NUL-terminated, and doesn't pad with NULs. */ -static char* strncpy0(char* dest, const char* src, size_t size) -{ - /* Could use strncpy internally, but it causes gcc warnings (see issue #91) */ - size_t i; - for (i = 0; i < size - 1 && src[i]; i++) - dest[i] = src[i]; - dest[i] = '\0'; - return dest; -} - -/* See documentation in header file. */ -int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler, - void* user) -{ - /* Uses a fair bit of stack (use heap instead if you need to) */ -#if INI_USE_STACK - char line[INI_MAX_LINE]; - size_t max_line = INI_MAX_LINE; -#else - char* line; - size_t max_line = INI_INITIAL_ALLOC; -#endif -#if INI_ALLOW_REALLOC && !INI_USE_STACK - char* new_line; - size_t offset; -#endif - char section[MAX_SECTION] = ""; - char prev_name[MAX_NAME] = ""; - - char* start; - char* end; - char* name; - char* value; - int lineno = 0; - int error = 0; - -#if !INI_USE_STACK - line = (char*)ini_malloc(INI_INITIAL_ALLOC); - if (!line) { - return -2; - } -#endif - -#if INI_HANDLER_LINENO -#define HANDLER(u, s, n, v) handler(u, s, n, v, lineno) -#else -#define HANDLER(u, s, n, v) handler(u, s, n, v) -#endif - - /* Scan through stream line by line */ - while (reader(line, (int)max_line, stream) != NULL) { -#if INI_ALLOW_REALLOC && !INI_USE_STACK - offset = strlen(line); - while (offset == max_line - 1 && line[offset - 1] != '\n') { - max_line *= 2; - if (max_line > INI_MAX_LINE) - max_line = INI_MAX_LINE; - new_line = ini_realloc(line, max_line); - if (!new_line) { - ini_free(line); - return -2; - } - line = new_line; - if (reader(line + offset, (int)(max_line - offset), stream) == NULL) - break; - if (max_line >= INI_MAX_LINE) - break; - offset += strlen(line + offset); - } -#endif - - lineno++; - - start = line; -#if INI_ALLOW_BOM - if (lineno == 1 && (unsigned char)start[0] == 0xEF && - (unsigned char)start[1] == 0xBB && - (unsigned char)start[2] == 0xBF) { - start += 3; - } -#endif - start = lskip(rstrip(start)); - - if (strchr(INI_START_COMMENT_PREFIXES, *start)) { - /* Start-of-line comment */ - } -#if INI_ALLOW_MULTILINE - else if (*prev_name && *start && start > line) { -#if INI_ALLOW_INLINE_COMMENTS - end = find_chars_or_comment(start, NULL); - if (*end) - *end = '\0'; - rstrip(start); -#endif - /* Non-blank line with leading whitespace, treat as continuation - of previous name's value (as per Python configparser). */ - if (!HANDLER(user, section, prev_name, start) && !error) - error = lineno; - } -#endif - else if (*start == '[') { - /* A "[section]" line */ - end = find_chars_or_comment(start + 1, "]"); - if (*end == ']') { - *end = '\0'; - strncpy0(section, start + 1, sizeof(section)); - *prev_name = '\0'; -#if INI_CALL_HANDLER_ON_NEW_SECTION - if (!HANDLER(user, section, NULL, NULL) && !error) - error = lineno; -#endif - } - else if (!error) { - /* No ']' found on section line */ - error = lineno; - } - } - else if (*start) { - /* Not a comment, must be a name[=:]value pair */ - end = find_chars_or_comment(start, "=:"); - if (*end == '=' || *end == ':') { - *end = '\0'; - name = rstrip(start); - value = end + 1; -#if INI_ALLOW_INLINE_COMMENTS - end = find_chars_or_comment(value, NULL); - if (*end) - *end = '\0'; -#endif - value = lskip(value); - rstrip(value); - - /* Valid name[=:]value pair found, call handler */ - strncpy0(prev_name, name, sizeof(prev_name)); - if (!HANDLER(user, section, name, value) && !error) - error = lineno; - } - else if (!error) { - /* No '=' or ':' found on name[=:]value line */ -#if INI_ALLOW_NO_VALUE - *end = '\0'; - name = rstrip(start); - if (!HANDLER(user, section, name, NULL) && !error) - error = lineno; -#else - error = lineno; -#endif - } - } - -#if INI_STOP_ON_FIRST_ERROR - if (error) - break; -#endif - } - -#if !INI_USE_STACK - ini_free(line); -#endif - - return error; -} - -/* See documentation in header file. */ -int ini_parse_file(FILE* file, ini_handler handler, void* user) -{ - return ini_parse_stream((ini_reader)fgets, file, handler, user); -} - -/* See documentation in header file. */ -int ini_parse(const char* filename, ini_handler handler, void* user) -{ - FILE* file; - int error; - - file = fopen(filename, "r"); - if (!file) - return -1; - error = ini_parse_file(file, handler, user); - fclose(file); - return error; -} - -/* An ini_reader function to read the next line from a string buffer. This - is the fgets() equivalent used by ini_parse_string(). */ -static char* ini_reader_string(char* str, int num, void* stream) { - ini_parse_string_ctx* ctx = (ini_parse_string_ctx*)stream; - const char* ctx_ptr = ctx->ptr; - size_t ctx_num_left = ctx->num_left; - char* strp = str; - char c; - - if (ctx_num_left == 0 || num < 2) - return NULL; - - while (num > 1 && ctx_num_left != 0) { - c = *ctx_ptr++; - ctx_num_left--; - *strp++ = c; - if (c == '\n') - break; - num--; - } - - *strp = '\0'; - ctx->ptr = ctx_ptr; - ctx->num_left = ctx_num_left; - return str; -} - -/* See documentation in header file. */ -int ini_parse_string(const char* string, ini_handler handler, void* user) { - ini_parse_string_ctx ctx; - - ctx.ptr = string; - ctx.num_left = strlen(string); - return ini_parse_stream((ini_reader)ini_reader_string, &ctx, handler, - user); -} |